Bugfix/print property name units lighting (#313)

* Fix EPICS property name proprietary range

* Fix Lighting Command decode length

* add function to determine property name and units proprietary range

* improve test coverage for AI, AO, AV, BI, BO, BV, LO

* refactor common property encoding to proplist module

* add decoder for priority array

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

test/bacnet/basic/object/lo/src/main.c

@@ -52,11 +52,9 @@ static void testLightingOutput(void)
                 printf("property '%s': failed to decode!\n",
                     bactext_property_name(rpdata.object_property));
             }
-            if ((rpdata.object_property == PROP_LIGHTING_COMMAND) ||
-                (rpdata.object_property == PROP_PRIORITY_ARRAY) ||
-                (rpdata.object_property == PROP_TRACKING_VALUE)) {
-                /* FIXME: how to decode the complex data? */
-                test_len = len;
+            if (rpdata.object_property == PROP_PRIORITY_ARRAY) {
+                /* FIXME: known fail to decode */
+                len = test_len;
             }
             zassert_equal(len, test_len, NULL);
         }